Home / 107,808.20-161,712.30-92,061.80

Finding the Fourth Proportional to 107,808.20, 161,712.30 and 92,061.80

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Solution

The fourth proportional to 107,808.20, 161,712.30 and 92,061.80 is: 138,092.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,808.20 : 161,712.30 = 92,061.80 : x
  2. Step 2: Convert to fraction form
    107,808.20/161,712.30 = 92,061.80/x
  3. Step 3: Cross multiply
    107,808.20x = 161,712.30 × 92,061.80
  4. Step 4: Simplify right side
    107,808.20x = 14,887,525,420.14
  5. Step 5: Solve for x
    x = 14,887,525,420.14/107,808.20
  6. Step 6: Final answer
    x = 138,092.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.